Backtrace

BUG: unable to handle page fault for address: 0000002e00000010
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 1 PID: 132 Comm: kworker/u16:3 Not tainted 5.8.15-301.fc33.x86_64 #1
Hardware name: LENOVO 20AN006NUS/20AN006NUS, BIOS GLET95WW (2.49 ) 03/19/2018
Workqueue: writeback wb_workfn (flush-btrfs-1)
RIP: 0010:rb_next+0x14/0x50
Code: d8 e9 f2 fe ff ff 48 c7 07 01 00 00 00 c3 0f 1f 84 00 00 00 00 00 48 8b 17 48 39 d7 74 35 48 8b 47 08 48 85 c0 74 1c 49 89 c0 <48> 8b 40 10 48 85 c0 75 f4 4c 89 c0 c3 48 3b 78 08 75 f6 48 8b 10
RSP: 0018:ffffa8be002c3958 EFLAGS: 00010206
RAX: 0000002e00000000 RBX: 0000002e00006000 RCX: 0000000008000000
RDX: 0000002e00000001 RSI: 0000000000000010 RDI: ffff8e2b0beb6830
RBP: ffffa8be002c39c0 R08: 0000002e00000000 R09: 0000000000000000
R10: ffff8e2cbe5d5000 R11: 00000000000002e2 R12: 0000000008000000
R13: ffffa8be002c39b8 R14: 0000000000000000 R15: ffff8e2b0beb6830
FS:  0000000000000000(0000) GS:ffff8e2cb2640000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000002e00000010 CR3: 00000002b6b18003 CR4: 00000000001606e0
Call Trace:
 btrfs_find_delalloc_range+0xb5/0x180
 find_lock_delalloc_range+0x6a/0x1e0
 writepage_delalloc+0x6e/0x140
 __extent_writepage+0xd0/0x2e0
 extent_write_cache_pages.constprop.0+0x273/0x430
 ? btrfs_submit_bio_hook+0x155/0x180
 ? btrfs_run_delalloc_work+0x40/0x40
 extent_writepages+0x33/0xc0
 do_writepages+0x28/0xa0
 ? __schedule+0x28a/0x840
 __writeback_single_inode+0x3d/0x340
 writeback_sb_inodes+0x1d8/0x450
 __writeback_inodes_wb+0x4c/0xe0
 wb_writeback+0x1ed/0x2b0
 wb_workfn+0x2b3/0x4c0
 ? __switch_to+0x80/0x420
 process_one_work+0x1b4/0x370
 worker_thread+0x53/0x3e0
 ? process_one_work+0x370/0x370
 kthread+0x11b/0x140
 ? __kthread_bind_mask+0x60/0x60
 ret_from_fork+0x22/0x30
Modules linked in: binfmt_misc nft_objref nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat iptable_mangle iptable_raw iptable_security ip6table_filter ip6_tables iptable_filter ip_tables uinput nls_utf8 isofs ccm rfcomm nf_conntrack_netbios_ns nf_conntrack_broadcast nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink cmac bnep sunrpc rmi_smbus rmi_core intel_rapl_msr mei_wdt mei_hdcp at24 intel_rapl_common iTCO_wdt intel_pmc_bxt iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm iwlmvm snd_hda_codec_realtek irqbypass rapl snd_hda_codec_generic mac80211 intel_cstate snd_hda_codec_hdmi uvcvideo intel_uncore snd_hda_intel videobuf2_vmalloc videobuf2_memops snd_intel_dspcfg snd_hda_codec libarc4 videobuf2_v4l2 snd_hda_core videobuf2_common btusb snd_hwdep btrtl btbcm btintel pcspkr
 iwlwifi snd_seq bluetooth joydev wmi_bmof snd_seq_device i2c_i801 videodev i2c_smbus snd_pcm cfg80211 ecdh_generic lpc_ich ecc mc mei_me mei snd_timer thinkpad_acpi ledtrig_audio snd soundcore rfkill zram i915 nouveau rtsx_pci_sdmmc mmc_core mxm_wmi crct10dif_pclmul ttm crc32_pclmul crc32c_intel i2c_algo_bit ghash_clmulni_intel drm_kms_helper uas cec usb_storage serio_raw e1000e drm rtsx_pci wmi video fuse [last unloaded: ip_tables]
CR2: 0000002e00000010